<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			 .box2{
			 	width: 150px;
			 	height: 200px;
	display: flex;
    justify-content:center;
    align-items:Center;
			 } 
		</style>
	</head>
	<body>
	<div class="box2">
		<p>1213212313</p>
	</div>	


	</body>
	<script type="text/javascript">
	
document.write("<p>Platform: ")
document.write(navigator.platform + "</p>")
</script>
</html>
